The full study to these appendixes examined the feasibility and effectiveness of using brief email and text message communications to increase the number of parent and guardian visits to the Reading Initiative for Student Excellence (R.I.S.E.) state literacy website. This document presents the following four appendixes that accompany the study: (1) Study design; (2) Methods; (3) Supporting analyses; and (4) Supplemental analyses. [For the full report, see ED624334. For the Study Snapshot, see ED624335.]